Stop for talking-machines.



s. WARD. STOP FOR TALKING MACHINES.

- APPLICATION FILED APR. 14. I916. 1,215,446. Patented Feb.13,1917.

v 2 SHEETS-SHEET 1- W61 Wa/ral W. S. WARD.

STOP FDR TALKING MACHINES.

v APPLICATION FILED APR.14, 191s.

Patented Feb. 13,1917.

2 SHEETS-SHEET 2.

WILLIAM s. wear, or eHAnLorrEsvILLn, VIRGINIA.

'sror Eon TALKING-MACHINES.

misses.

' State of Virginia, have invented anew and.

useful Stop for Talking-Machines; and I do hereby declare the followingto be a full,

clear, and exact description of the invention, such as will enableothers-skilled in the art to which it appertains to make and use thesame.

This invention relates to the art of talking machines, and moreespecially to an improved stop and starting mechanism, automaticallyactuated by the tone or sound arm, for automatically stopping andstarting the record supporting turn table.

It is known that owing to pieces, songs and the like varying in length,records of talking machines correspondingly vary. In other words, as istermed in the commercial field, there are what are known as deep andshallow records. Therefore, it is an object of the present invention toprovide a stop and starter, which may be adjusted according to therecord, in order to be vautomatically actuated by the tone or sound arm,at the beginning and the termination of the record.

Another object of the invention is to pro' vide a stop and startermechanism of this kind comprising simple, improved, eflicient andpractical features of construction.

One of the features of construction is the provision of a brake leverincluding a brake to frictionallv engage the peripheral edge of the turntable of the talking machine for arresting the table in its movement, incombination with a pair'of levers, to which link members are connected,one linkbeing slidably connected to the other link, and adapted to beactuated by a member on the tone or sound arm to actuate the brakelever, in order to remove the brake shoe from the table, the other leverto which one of the links is connected is actuated by a springto holdthe brake shoe out of engagement with the table.

Another feature of the invention is the provision of adjustable meansupon one end of the other means, designed to be actuated by the memberon the tone or sound arm, to

actuate the lever which is holding the brake lever, to release the brakelever and allow its shoe to again engage the table.

Another obJeet of the invention is to con- Specification of LettersPatent.

Application filed April 14, 1916. Serial No..91,081.

Patented Feb. 13, ieit.

struct means carried by one of the links to be engaged by the member onthe tone arm ;as it reaches the limit of its inward movement with novelfeatures of construction, whereby said means may be adjusted, to stopthe machine, relative to the extent of movement of the tone arm, wherebythe brake lever will operate with promptness and with precision.

In practical fields the details of construction may necessitatealterations, falling within the scope of What is claimedi The inventioncomprises further features and combination of parts,- as hereinafter setforth, shown inthe drawings and claimed.

In the drawings: a .Figure 1 is a plan View of a portion of atalkingmachine, showing the automatic stop and starting" mechanism asapplied,

whereby the mechanism may be operated automatically by the tone or soundarm.

Fig. 2 is a perspective view of the stop and starting mechanismdetached.

Fig. 3 is a plan view of the stop and starting mechanism, showing thecasing for the brake lever in section and showing the means-to beactuated by a member on the tone arm at the beginning and ending of themovement of the tone arm broken, and

the part broken away disposed below.

Fig. 4 is a view partly in plan elevation and partly in section, andillustrating parts broken, one part above the other, so that the variouselements of the mechanism may be illustrated one large scale.

Fig. 5 is a sectional view on line 5-5 of Fig. 3, looking toward thecasing, in which the brake lever is arranged. 'Fig. 6is a sectional viewof the member to be carried by the tone or sound arm for actuating-thestop and starting mechanism.

Referring more especially to the drawing, 1 designates a portion of thecasing of a talking machine, and in which casing the motor for drivingthe record supporting turn table 2 is designed to be arranged.

The tone-or sound arm 3 is mounted upon the casing 1 pivotally as at 4,whereby the arm may swivel or move pivotally in a lateral direction, sothat the stylus or needle of the reproducer or sound box 5 may followthe record groove from its beginning to its termination near the centerof the disk. A plate 6 is secured to the casing 1 by means of suitables'lgjews 7.. Pivoted peripheral edge of the turn table 2.

. and one end of the slot 36 ofthe enlarge-' ment, the tendency of thespring 39 being to throw the rod in the direction of the by means of ascrew8 to the plate 6 is a brake lever 9, one arm 10 of which isprovided with a dove-tailed recess 11, to re: ceive and hold a suitablebrake shoe 12, which maybe constructed from any suitable material,rubber, felt or the like, and designed to frictionally engage theperipheral edge 13 of the record supporting turn table, to hold thetable at rest. The brake lever 9, has connected. to its other ,arm 14 asuitable coil spring 15, which is in turn connected to the stud16, thespring 15 actuating and holding the brake lever, so that the brake shoe12 frictionally engages the peripheral edge of the table. The brakelever 9 has an enlarged segmental portion 17, which is provided with theshoulders 18 and 19. livoted on a screw 20 of the plate 6 is a dog 21,the nose 22 of which is designed to engage the shoulder 19, when the dog21 is rocked upon its pivot, so as to oscillate the brake lever-9, tothrow the brake shoe 12 out of engagement with tllp detent lever 23 ispivoted upon the screw 24 of the plate 6, and the arm 25 of said detentlever is provided with an angled end 26, to engage the shoulder 18, tohold the, brake lever when thrown to the position shown in Fig. 4, withthe brake shoe 12 out of engagement with the peripheral edge 13 of theturn table. One end of :1 coil spring 27 is connected to a stud pin 28,and has its other end connected to'a pin 29 of the detent lever 23, soas to hold the angled end 26 of the detent lever 23 in engagement withthe shoulder 18. A link 30 has one end pivotally connected by means of apin 31 to the arm 32 of the detent lever 23. This link is provided witha slot 33, which is constructed substantially midway the center of thelink 30. The end portion 34 of the link 30 has an enlargement 35, whichis provided'with an elongated slot '36, which is in a transverse planeat right angles to the slot 33. A rod 37 is adjustably mounted in sheopening 38-of the ends of the enlargement 35, there being a coilspring-39 in the slot 36 and surrounding the rod 37, and interposedbetween the transverse pin 40 arrow a. However, pivotallymounted upontween the offset bent end 45 and one end of the enlargement, therebyacting to hold the angled end 43 "in engagement with the circumferenceof the rod 37, to hold the rod .37 .in different adjusted positionsagainst the action of the spring 39. A link 46 is pivoted by means, of apin 47 to one end tion, there being a suitable band of felt or p thelike 56 between the clamp and the arm, so as to prevent scratching orinjuring the tone arm. The member or section 53 of the clamp has adownwardly protruding extension 57 provided with a threaded bore 58,into which the shank 59 of a T-shaped pin 60 is threaded, there being asuitable lock nut 61 for holding the T-sha-ped pin in adjusted positionin the threaded bore. The reduced part 62 of the shank of the T-shapedpin engages theelongated-,slot 33 of the link 30, while the head of theT-shaped pin engages the under face of a the link 30 adjacent the slot33. The plate 6 is provided with a suitable inclosureor casing, thatfits downwardly uponthe same to protect the various elements carriedupon said plate. When the talking machine is at rest the brake lever 9is in the position shown in Figs. 1 and 3, so that the brakeshoe'engages the peripheral edge 13 of the turn table. After a record isplaced upon the turn table, the tone or sound arm.- is

moved in the direction of the arrow 6 in Fig. 1, until the reduced part62 of the T-shaped pin 60 engages the crotch 48 of the link 46, and byfurther movement of the pin 60 the dog 21 is tilted upon its pivot inthe direction of the arrow 0,. thereby causing the nose .22 to rock thebrake lever upon its pivot against the action of the spr ng 15, so thatthe angled end 26 will engage the shoulder 18, thereby holding the brakelever in the position shown in Fig. .4,

the result of which permits the turii table to rotate, and the recordtherewith. When the stylus-of the sound "box or reproducer.

reaches the end of the sound groove, the rod 37 having been. adjustedaccordingly,

the reduced part 62 of the "T-shaped pin.

60 will contact with the end 65 of the rod 37,.thereby pulling upon thelink 30, which will rock the detent lever 23 in the direction of thearrow 03, thereby disengagingthe angled end 26 of the detent lever fromthe shoulder 18, thereby allowing the brake shoe to engage theperiphery. 13 of the turn table to stop the machine. The stud pin 66limits the movementof the detent lever 23. The invention having been setforth, what is. claimed as new and useful is:

1. In a stopping and release device for talking machines, a plate on thecasing of the machine, a spring tensioned brake lever pivoted-to theplate and having a brake shoe to engage the peripheral edge of the turntable of the talking machine, a dog movably mounted upon the plate, anda link pivoted to said dog and designed to be actuated by a member uponthe tone arm of the ma chine to actuate the dog to operate the brakelever, whereby the shoe is thrown out of engagement with the table, anda detent lever to engage the brake lever to hold its shoe out ofengagement with the table, and means pivotally connected to the detentlever and adapted to be actuated by the member on the tone arm todisengage the detent lever from the brake lever, allowing the springtensioning means of the brake lever to actuate the same to throw theshoe in contact with the table.

2. In a stopping and release device for talking machines, a pivotedspring tensioned brake lever having a brake shoe to engage the edge ofthe turn table of a talk- '1ng machine, a dog to actuate the brake leverto throw its shoe out of engagement with the table, a link pivoted tothe dog and designed to be actuated by a member on the tone arm tooperate the dog, a detent lever, said brake lever having a shoulder tobe engaged by one end of the detent lever to hold the brake lever withits shoe out of engagement with the table, a link pivoted to the otherarm of detent lever and having an elongated slot, in which the firstlink is slidably connected. said slotted link at one end havingadjustable means to be engaged by the member on the tone arm for pullingthe slotted link and actuating the detent lever to release the brakelever.

In a stopping and release device for talking machines, pivoted springtensioned brake lever having a brake shoe to engage the edge of thetllPl table of a talking machine, a dog to actuate the brake lever tothrow its shoe out of engagement with the table, a link pivoted to thedog and designed to be actuated by a member on the tone arm to operatethe dog, a detent lever, said brake lever having a shoulder tobeengaged. by one end of the detent lever to hold the brake lever witn.its shoe out of engagement with the table, a link pivoted to the otherarm of detent lever and having an elongated slot, in which the firstlink is slid-ably connected, said slotted link having at one end anenlargement provided with a slot, a rod mounted in openings of ends ofthe enlargement to be engaged by the member on the tone arm for pullingthe slotted li and actuating the detent lever to release the brakelever, spring tensioning means for said rod,

and a spring tcnsioncd detent lever mount- &

ed in said second slot to hold the rod in adjusted positions. a

4. In a stopping and release device for talking machines, a pivotedspring tensioned brake lever having a brake shoe to engage the edge ofhe turn table of the machine,

and provided with a shoulder, apivoted dog 7 to engage said shoulder torock the brake lever whereby the brake shoe will be moved out ofengagement with the turn table, a link pivoted to the dog and designedto be engaged by. a member of the tone to actuate the dog.

5. in a stopping and release device for talking machines, a pivotedspring tensioned. brake lever having a brake shoe to engage the edge ofthe turn table of the machine, and provided with a shoulder, a pivoteddog to engage said shoulder to rock the brake lever, whereby the brakeshoe will be moved out of engagement with the turn table, a link pivotedto the dog and designed to be engaged by a member of the tone arm toactuate the dog, said brake lever having a second shoulder, a pivoteddetent lever having an angled end to engage the second shoulder forholding the brake lever with its shoe out of engagement with said turntable, and a link having means at one end tobe engaged by a member onthe tone arm to actuated the detent lever to release the brake lever.

6. In a stopping and release device for talking machines, a pivotedspring tensioned brake lever having a brake shoe to engage the edge ofthe turn table of the machine, and provided with a shoulder, a pivoteddog to engage said shoulder to rock the brake lever, whereby the brakeshoe will be moved out of engagement with the turn table, a link pivotedto the dog and designed to be engaged by a member of the tone arm toactuate the dog, said brake lever having a second shoulder, a pivoteddetent lever having an angled end to engage the second shoulder forholding the brake lever with its shoe out of engagement with said turntable, and a link having means at one end to be engaged by a member onthe tone arm to actuate the detent lever to release the brake lever,.said means being adjustable according to the size of the record so thatthe member on the tone arm will engage therewith to release the detentlever from the brake lever.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

WILLIAM S. WARD.

lltl

